Fix Runecrafting (broken by cf7a742).

data/plugins/skill/runecraft/altar.rb

@@ -26,7 +26,7 @@ end
 # Intercepts the item on object message.
 on :message, :item_on_object do |ctx, player, message|
   talisman = TALISMANS[message.id]; altar = ENTRANCE_ALTARS[message.object_id]
-  if (talisman != nil && altar != nil)
+  unless (talisman.nil? || altar.nil?)
     player.start_action(TeleportAction.new(player, message.position, 2, altar.entrance_position))
     ctx.break_handler_chain
   end
@@ -36,6 +36,7 @@ end
 on :message, :object_action do |ctx, player, message|
   if (message.option == 1)
     object_id = message.id
+    
     if (altar = PORTALS[object_id]) != nil # Get the altar associated with this exit portal.
       player.start_action(TeleportAction.new(player, altar.entrance_position, 1, altar.exit_position))
       ctx.break_handler_chain